Burrough, Peter A and McDonnell, Rachael A. <br/><br/>
Principles of geographical information systems / 

 - New York,  Oxford University Press,  c2000 
 - xii, 333 p. ;  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>9780199228621 
<br/><br/><label>LC Class. No.: </label>Acc 17989 -17998 
<br/><br/><label>Dewey Class. No.: </label>910.285